Here is the harvest from Carola TPS that I saved from last year.  The berries were produced on Carola potatoes but every plant that I have grown from these seeds has produced tubers with some amount of blue flesh.  The only blue fleshed potato that was grown nearby was Adirondack Blue.  Therefore, I concluded that the seeds must have been cross-pollinated since Carola produces a yellow skin/yellow fleshed tuber.  I like the flattened shape of the first tubers, but the skin color is not very attractive.